Παραπομπή APA

Derry,, T. (1982). European world 1870-1975 (1st.). surjeet.

Παραπομπή Chicago Style

Derry,, T.K. European World 1870-1975. 1st. New Delhi: surjeet, 1982.

Παραπομπή MLA

Derry,, T.K. European World 1870-1975. 1st. surjeet, 1982.